Home extensions in Flint
Planning an extension in Flint? Compare extension types, see guide prices adjusted for Flint and book a free site visit.
- Postcode districtsCH6
- Price regionWales (×0.93)
- Planning rulesWales
- Site visitFree, no obligation
Flint and surrounding towns
Postcode districts we cover around Flint include CH6. Neighbouring towns we cover include Deeside (5 miles), Buckley (6 miles), Hawarden (6 miles), Prestatyn (13 miles), Wrexham (15 miles). Welshpool, in Powys, is roughly 41 miles from Flint and also on our list.
Do extensions in Flint need planning permission?
In Wales a single-storey rear extension can usually project up to 4 m beyond the rear wall without a planning application, if it is no more than 4 m high, keeps eaves to 3 m and overall height to 4 m within 2 m of a boundary, and covers no more than half the land around the original house. Wales has no larger home extension prior approval scheme.
In Wales a single-storey side return can fall within permitted development if it stays within the 4 m height limit and the width rules for side extensions. Conservation areas and listed buildings need consent, and the Party Wall Act applies to work on or near a shared wall.
In a conservation area, national park, National Landscape or World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. Wales has its own building regulations and approved documents; the council or a registered building control approver checks the plans, inspects the work and issues a completion certificate.
Applications are decided by the local planning authority (your county or county borough council, or the national park authority).
Choosing the right extension in Flint
Welsh housing ranges from stone terraces in the valleys to render-and-slate houses and modern estates, and the Welsh planning rules differ from England's in several places.
For many houses here, side return extensions, single-storey rear extensions or pitched roof extensions gives the most useful space for the budget.
Guide prices for Flint
Prices on this page use our Wales factor of ×0.93, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Wraparound extensions | 25 m² | £53,000 – £67,500 |
| Kitchen extensions | 20 m² | £39,000 – £49,500 |
| Double-storey extensions | 32 m² | £53,500 – £70,000 |
| Conservatory replacement extensions | 14 m² | £27,500 – £36,000 |
| Extensions over a garage | 12 m² | £23,000 – £30,500 |
All extension types we build in Flint
- Planning permission for extensions · from £300
- Timber frame extensions · from £19,500
- Pitched roof extensions · from £20,500
- Extensions over a garage · from £22,000
- Home office extensions · from £14,500
- Bedroom extensions · from £24,000
- Flat roof extensions · from £19,500
- Glass box extensions · from £27,500
- Double-storey extensions · from £35,000
- Extension plans and drawings · from £1,100
- Kitchen extensions · from £25,000
- Orangery extensions · from £27,500
- Bungalow extensions · from £24,000
- Single-storey rear extensions · from £19,500
- Porch extensions · from £3,700
- Annexe extensions · from £51,000
- Wraparound extensions · from £33,000
- Conservatory replacement extensions · from £18,500
- Side extensions · from £20,000
- Utility and boot room extensions · from £13,000
- Building regulations for extensions · from £800
- Side return extensions · from £16,500
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Flint
How much does an extension cost in Flint?
Using our Wales factor (×0.93), a standard-spec single-storey extension of 20 m² is a guide £38,000 to £48,500 including VAT, and a 32 m² two-storey extension £53,500 to £70,000. Your written price follows the survey.
How long does an extension take in Flint?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Flint, and the guide-price tool gives a range for your own size and finish in about a minute.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Book a free site visit in Flint
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.